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Grade C-2 Titanium vs. ASTM B817 Type II

Both grade C-2 titanium and ASTM B817 type II are titanium alloys. They have 85% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade C-2 titanium and the bottom bar is ASTM B817 type II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 17
3.0 to 13
Fatigue Strength, MPa 200
390 to 530
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 390
900 to 960
Tensile Strength: Yield (Proof), MPa 310
780 to 900

Thermal Properties

Latent Heat of Fusion, J/g 420
400
Maximum Temperature: Mechanical, °C 320
350
Melting Completion (Liquidus), °C 1660
1580
Melting Onset (Solidus), °C 1610
1530
Specific Heat Capacity, J/kg-K 540
550
Thermal Expansion, µm/m-K 8.7
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
37
Density, g/cm3 4.5
4.6
Embodied Carbon, kg CO2/kg material 31
40
Embodied Energy, MJ/kg 510
650
Embodied Water, L/kg 110
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61
26 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 460
2890 to 3890
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
34
Strength to Weight: Axial, points 24
55 to 58
Strength to Weight: Bending, points 26
45 to 47
Thermal Shock Resistance, points 30
62 to 66

Alloy Composition

Aluminum (Al), % 0
5.0 to 6.0
Carbon (C), % 0 to 0.1
0 to 0.1
Chlorine (Cl), % 0
0 to 0.2
Copper (Cu), % 0
0.35 to 1.0
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.2
0.35 to 1.0
Nickel (Ni), % 0 to 0.050
0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0 to 0.4
0 to 0.3
Silicon (Si), % 0
0 to 0.1
Sodium (Na), % 0
0 to 0.2
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 98.8 to 100
82.1 to 87.8
Vanadium (V), % 0
5.0 to 6.0
Residuals, % 0
0 to 0.4